Refrigerator



R. E. OTTENHEIMER.

REFRIGERATOR.

APPLICATION FILED N0v.11, 1920.

1,389,688. Patentedsept. 6,1921.

2 SHEETS-SHEET 1. A)

R. E. OTTENHHEIMER.

REFRIGERATOR.

APPLICATION FILED NOV H, 1920.

PatentedSept. 6, 1921.

2 SHEETSSHEET 2.

UNIT-so STATES or Bum m, rm

mazes-anon.

. I.|1-l.' E. V

. lunatic! fled November I To all may concern.-

- mmmn, a citizen of the 'UnitedStates, re-

Be it known that I Rmmnn E. O'rmN- siding at Baltimore city, State of Maryland,

' have invented certain new and useful 1m- 'culating devices to permit the same to be easily installed in an ordinary household refri erator.

W1th the objects stated 1n new, the invention consists in a combinationandarrangement of parts to be hereinafter descrlbed and claimed, and in order that the same may be better understood, reference 1s had to theaccompanying drawings forming a part of this specification.

In the drawings, I Figure 1 is a cross-section of the refrigerator; Fig. 2 is a cross-section thereof from asshown in Fig; 2.

the front to the rear; Fig. 3 is a horizontal section on the line 3-3 of Fig. 1, drawn to an enlarged scale, and Fig. 4 1s a plan viewshowing a fragment of a drain trou h.

Referrin specifically to the drawings, the body 5 of tfie refrigerator' is of-conventional design, and it is govided with a provision or storage cham usual assembly, of shelves. The storage chamber -6 occupies most of the interior of the body 5, and at the to of said chamber there is built into the y a cooling chamber 7 to take the place of the usual we compartment. This coolingcha'mber, is composed of front and rear walls 8 and a bottom 9 e'xtendin lengthwisebetween the side walls of the b0 y'5. The walls Sare spaced from the front and rear walls of the body 5. The bottom of the cooling chamber slopes in the direction of its lon 'tudinal median line, I 0 top of the body) 5 is provided with 'a tight-fitting remova le cover 10 from the inner side of which the walls Stare spaced at the top, so that the cold airin the chamber 7 formed by said escape into the.

walls and the bottom 9 may storage chamber 6..

In the chamber 7, over toward .one end n mi j time" m a I Patented Se t 6, i921. r-

r 6 provided with the- 1i, 1m; semi at. 428,237.

thereof, located a tank 11 adapted to 113m 4' ber 12 which is designedfor the manufacture of small quantities of ice. chamber12 is directly beneath an openin in the cover 10 so that access to fluid refrigerant, such as brine. The top ofthe tank 11 has a depression to form a cham-.v

The freezing I said chain r 1 ma be had, and this opening is provided] wit a tightrfitting lid 13.

In the chamber 7 is also mounted a bank of coils 14 connected to the brine tank 11. A pump 15 is provided forcirculatin the brine through the coils 14, the ump ing suitabl connected to the latter En this purpose. he pump and it is mounted on the outside of the cover 10. The cover 10 also supports the brine'tank 11 and the circulating coils, and

hence the entire assembly can be readil installed, and is also removable from the ody 5 by merely taking the cover 10 ofi.

At the longitudinal center line of the bottom 9 is .-a:cold' air outlet slot 16 which is provided with two oppositely slidable damper plates 17 extending parallel to the 15 is electric-motor driven,

slot and located below the bottom 9. The

damper plates may be spread or brought closer to ther, more or less, to control the escape o the cold air from the chamber 7 into the storage chamber 6 throu h the slot 16. The plates 17 are supporter? by guide cleats-18 carried by the side walls of the body 5.

In order to automatically control the damper plates 17 a thermostat 19 is provided, the same being located in the chamber 6 at the top thereof, and having a damperoperating rod 20 connected by toggle links 21 to the plates 17. It will therefore be seen that the movement of the thermostat in response to changes in the temperature within the chamber 6, causes the rod 20 to move in the direction of its length, whereby, through the toggle links 21, the damper plates 17 are sprea or drawn together according to the direction the rod is moved by the thermostat. The thermostat may be one of ordinary design, and hence a detailed tion thereof is not necessary.

The bottom 9 of the chamber 7, on each side of the slot 16, is provided with a drain descriptrough 22. These two troughs have a down--' pipe 24 which passes through the chamber 6 and .through the bottom wall thereof as shown in Figs. 1 and 2, its outlet end being fitted with the usual trap 25. -As shown at 26 in Fig. 3, the inner edges of the damper plates '17-are' recessed to clear the drain pipe 24 where it connects with the connecting .,...p 23 0f the troughs 22, and the rod 20 .also has an offset portion 27 to clear the 2 9.,

drain pipe.

7Above the troughs 22 is a deflector plate 2 The pump'l5 may be provided with a cover as shown dotted in Fig. 1.

I claim: t

A refrigerator comprising a 1 storage chamber, a cooling chamber at the top of the storage chamber and, having a bottom outlet slot, a pair of oppositely movable damper plates associated with the slot, and an operating rod extending lengthwise of the damper plates,'toggle links connecting the rod to the respective damper plates, and

a thermostat operatively connected to. the

rod.

In testimony whereof I aflix my signature.

REUBEN E. OTTENHEIMER. 

